How do I mark a task as complete? A task can be performed from the work list and the module Maintenance. Double-click on a  task. Enter a  Remark. Click on  Task completed. The task will disappear from the work list and will be added back to the list at a predetermined interval. Optional: Documents: Here you can add documents to this task completion. Photos : Here you can add photos to this task completion. Parts:  Here you can add parts to this task completion.